Fibre Glass Sleeve

PET film is a kind of film widely used in packaging, printing, film coating and other fields. Its main raw material is polyethylene terephthalate (PET), which is a kind of polyester resin. The manufacturing process of PET film can be divided into several steps: Material preparation: prepare raw...

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Description

Material preparation: prepare raw materials such as PET, pigment and other additives according to the requirements of product performance and use.

Extrusion: The prepared materials are extruded by an extruder to form a thin film.

Annealing: The extruded film is annealed to increase its dimensional stability and reduce internal stress.

Slitting: The annealed film is slit into the desired width according to the requirements of use.

Packaging: The PET film is packaged for sale after passing through a series of quality inspections.

The manufacturing process of PET film has high requirements for equipment and technology. The extruder used in the process needs to have high temperature resistance, wear resistance and corrosion resistance to ensure stable production and product quality. In addition, PET film has good tensile strength, impact resistance, chemical resistance and electrical insulation performance, so it is widely used in various fields.

PET film manufacturing has high economic value and market prospects. With the development of the national economy and the improvement of people's living standards, the demand for PET film is increasing in various fields, especially in food packaging and printing fields. Therefore, PET film manufacturing has become one of the important industries in the packaging printing industry.

FAQ

1.Q: Are you trading company or manufacturer ?

A: We are a manufacturer, We have more than 36 years experience in producing electrical insulation material.

2.Q: Where is your factory located? How can I visit there?

A: Our factory is located in Xuchang,Henan provience.

3.Q: Which certification do you have?

A: The plant has passed the certificate of ISO 9001 quality system certification;
The products have passed ROHS test.

4.Q: Can i get a samples for free?

A: Of course we can sent you a sample for free, customers just need to pay a litter shipping change.

5.Q: How long is the delivery time?

A: Generally it is 5-15 days if polyimide film price is in stock, or it is 15-30 days.

Properties		Unit	Value
Appearance		/	The coating should be uniform and the surface should be smooth, with no
			defects affecting the product performance.
Inner diameter and wall thickness		mm	Inner diameter			Wall thickness
			Standard	Tolerance		Type 403		Type 404

				Two-way (±)	One-way (+)	Min	Max	Min	Max

			1	0.15	0.3	0.25	0.75	0.2	0.75
			1.5	0.15	0.3	0.35	0.75	0.2	0.75
			2	0.2	0.4	0.35	0.75	0.2	0.75
			2.5	0.2	0.4	0.4	0.75	0.2	0.75
			3	0.25	0.5	0.4	0.75	0.2	0.75
			4—6	0.25	0.5	0.5	0.75	0.3	0.75
			8	0.5	1	0.5	0.75	0.3	0.75
			10—25	0.5	1	0.65	1.2	0.4	0.9
Breakdown voltage	Value	KV	Pellet slot or straight core bar/100mm foil electrode			Mid-value	Minimum	Mid-value	Minimum
							value		value

	Under room temperature					5.7	4.3	3.3	2.5
	Under high					2.9	2.3	1.9	1.4
	temperature	≥
	After hot and					1.7	1.3	1.4	1.1
	humid
Insulation resistance		Ω	—			≥1.0×109
Fire spreadability	Burning time	S	≤60
	Visual inspection	—	The indicator flag should not burn on any of the three specimens. Nor should the cotton be ignited by ignited or burning particles or by ignited
			drops.

Soldering heat resistance		—	Pass (Only for sleeve with nominal inner diameter ≤ 5 mm)
Bending after heating			The coating has no visible cracks or peeling off, allowing the color to
		—	become darker (test temperature: 180±3℃)
			The coating has no visible cracks or peeling off (test temperature: ≤-15～
Bending at low temperatures		—	-18℃)
Hydrolysis resistance of paint			There is no migration of the coating, no adhesion between the hose and
layer		—	the paper and the hose test piece, and no discoloration of the paper.
Shelf life		—	12 months